Yohji Yamamoto reflects on his thirty year career in fashion. In this 20-minute film shot in Yamamoto's Tokyo studio, the designer provides a laconic, engaging and sometimes passionate commentary on his career and design values. He considers how his work has evolved since his Paris debut and explains why he designs so differently for men and women, and also provides a withering personal analysis of the current state of the fashion industry. Transcript: Q: 30 years ago you caused a se…